Warm Up For Monday 09/20  Have a seat and write down today’s assignments in your agenda!  On your warm up sheet- answer the MAP ZONE questions on page 87 (Numbers 1 and 2)

Population

Main Idea 1: The study of population patterns helps geographers learn about the world.  Population, or the total number of people in a given area, determines a great deal about the place in which a person lives.  Influences business, transportation, schools, and more  Geographers study human population  Interested in patterns that emerge over time  Study information such as how many people live in an area, why people live where they do, and how populations change

Population Patterns Population Density  Population density —a measure of the number of people living in an area  High population density areas  Land more expensive  Roads crowded  Buildings taller  Low population density areas  More open spaces  Less traffic  More available land Where People Live  When an area is thinly populated, it is often because the land does not provide a very good life.  Rugged mountains  Harsh deserts  Polar regions  Areas with denser populations tend to be regions with fertile soil, reliable sources of water, and a good agricultural climate.

Main Idea 2: Population statistics and trends are important measures of population change.  Geographers examine three key statistics to learn about population changes.  Birthrate —the annual number of births per 1,000 people  Death rate —the annual number of deaths per 1,000 people  Rate of natural increase —the birthrate minus the death rate equals the percentage of natural increase, or the rate at which a population is changing.  Population growth rates differ from one place to another.  In some countries, populations are growing very slowly or even shrinking.  In most countries, populations are growing.  In countries with growing populations, governments face many challenges.

Population Change Migration  Migration is the process of moving from one place to live in another.  A common cause of population change  People migrate for many reasons.  Some factors push people to leave their country.  Some factors pull, or attract, people to new countries. World Population Trends  Earth’s population has exploded in the last 200 years  Better health care  Improved food production  Two important population trends:  Population growth in some of the more industrialized nations has begun to slow.  Less industrialized nations often have high growth rates.